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Die große Enzyklopädie des mechanischen Rechnens

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Patent:GB189902195A


Patent:GB 189902195A
Title:Improved Adding-apparatus
Date:31.01.1899
Place:Paris
Country:Great Britain
Person:Lafond, Georges (P)
Company:
Internal Links:Compteur Lafond
Keywords:
Link to the patent office:
(without guarantee)
 GB189902195A


Accepted: 9. Dec. 1899

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